Every so often you'll find the stars'n'stripes theme in various forms in American
magazines: music mags, women's mags, photo mags, fashion mags, and
political mags. Americans love it. In these mags, there are also
abnormal frequency of the word America or American: American Fashion,
Sex in America, America's sweetheart; while hardly ever other country
or continent's name. For the average American, America = the world,
and that's how Americans like it, and the capitalistic consummeristic
America sells by it.
Does other country's magazines frequently cite their own country this or that? I think it's uniquely US phenomenon. Possibly UK in some degree too.